I'd like to see a deeper discussion from the experts on this.
The link referenced speaks to Froyo having a portable WiFi hot spot, but I think the Epic has that already.
The link referenced speaks to Froyo being four or five times faster, but the review then says: "Of course, numbers are one thing, but how does it feel in practice? Frankly, we haven't seen that dramatic of a performance change."
OK, external storage for apps is a big new feature and flash support will be nice, but most of the other new features seem like marginal improvements that will be nice but are hardly revolutionary.
With the huge clamor for Froyo's release, I'd like to see some experts/knowledgeable posters weigh in on the OP's question: "What should a novice like myself be excited about as it applies to FROYO?"